Fly Ash for Removal of Contaminates from Coal Mine Drainage
نویسندگان
چکیده
منابع مشابه
Mineralogy and Trace Element Partitioning in Coal Fly Ash/Acid Mine Drainage Co-Disposed Solid Residues
Acid mine drainage (AMD) was reacted with coal fly ash in a 24 hour equilibration time using 3:1 and 1.5:1 AMD: FA ratios by weight to produce neutral and alkaline process waters and remove major and minor elements from solution. The elemental concentration trends with time in the solution were used to discern which elements have solubility control in the neutralization process. The resulting c...
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Fly Ash (FA) from a power station in South Africa was investigated to neutralise and remove contaminants from Acid Mine Drainage (AMD). After this primary treatment the insoluble FA residue namely solid residue (SR) was investigated as a suitable mine backfill material by means of strength testing. Moreover, SR was used to synthesise zeolite-P using a two-step synthesis procedure. Furthermore, ...
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Two pilot plant products containing 65 and 45% NaP1 zeolite were obtained from two Spanish coal fly ashes (Narcea and Teruel Power Station, respectively). The zeolitic product obtained showed a cation exchange capacity (CEC) of 2.7 and 2.0 mequiv/g, respectively. Decontamination tests of three acid mine waters from southwestern Spain were carried out using the zeolite derived from fly ash and c...
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Batch experiments were conducted to test the effects of various solution properties, such as pH, temperature, initial concentration and anoxic and aerobic atmosphere, on Cd removal by nanoscale zerovalent iron (nZVI) supported on industrial coal fly ash. Cd (II) could be removed by adsorption on fly ash-nZVI in a very short time (5 min) with high removal rates (greater than 99.9%) over a wide r...
متن کاملCoal Ash as a Low Cost Adsorbent for the Removal of Xylenol Orange from Aqueous Solution
The removal ofxylenol orange from aqueous solution onto the coal ash was investigated at room temperature. The results show that the adsorption capacity of xylenol orange increased as the adsorption time increased and then equilibrium established after 30 min adsorption time. The results obtained revealed that the coal ash removed about 80 % of xylenol orange from the aqueous solution withi...
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ژورنال
عنوان ژورنال: Natural Science
سال: 2016
ISSN: 2150-4091,2150-4105
DOI: 10.4236/ns.2016.89043